<!DOCTYPE html>
<html lang="zh-CN">
  <head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <!-- 上述3个meta标签*必须*放在最前面，任何其他内容都*必须*跟随其后！ -->
    <title>Bootstrap 101 Template</title>

    <!-- Bootstrap -->
    <link href="./node_modules/bootstrap/dist/css/bootstrap.css" rel="stylesheet">

    <!-- HTML5 shim 和 Respond.js 是为了让 IE8 支持 HTML5 元素和媒体查询（media queries）功能 -->
    <!-- 警告：通过 file:// 协议（就是直接将 html 页面拖拽到浏览器中）访问页面时 Respond.js 不起作用 -->
    <!--[if lt IE 9]>
      <script src="https://cdn.jsdelivr.net/npm/html5shiv@3.7.3/dist/html5shiv.min.js"></script>
      <script src="https://cdn.jsdelivr.net/npm/respond.js@1.4.2/dest/respond.min.js"></script>
    <![endif]-->
    <style>
      .ttt{
        background-color: red;
      }
    </style>
  </head>
  <body>
    <div class="container">
      <div class="row">
        
        <div class="col-md-4">
          <div class="thumbnail">
            <p class="lead">
              <mark>Nullam</mark> quis risus eget urna mollis ornare vel eu leo. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Nullam id dolor id nibh ultricies vehicula.
            </p>

            <p>
              For example, <code>&lt;section&gt;</code> should be wrapped as inline.
            </p>
          </div>

         
        </div>
        <div class="col-md-4">
           <div class="thumbnail">
            <table class="table table-striped table-bordered table-hover">
              <tr class="active">
                <td>#</td>
                <td>姓名</td>
                <td>年龄</td>
                <td>爱好</td>
              </tr>
               <tr class="success">
                <td>1</td>
                <td>alex</td>
                <td>18</td>
                <td>鸡汤</td>
              </tr>
              <tr class="info">
                <td>2</td>
                <td>alex</td>
                <td>18</td>
                <td>鸡汤</td>
              </tr>
               <tr class="warning">
                <td>3</td>
                <td>alex</td>
                <td>18</td>
                <td class="danger">鸡汤</td>
              </tr>
            </table>
          </div>
         
        </div>
         <div class="col-md-4">
           <div class="thumbnail">
            <form>
              <div class="form-group">
                <label for="user">用户名</label>
                <input type="text" class="form-control" id="user" placeholder="请输入用户名">
              </div>
              <div class="form-group">
                <label for="pwd">密码</label>
                <input type="password" class="form-control" id="pwd" placeholder="请输入密码">
              </div>
              <div class="form-group">
                <label for="exampleInputFile">File input</label>
                <input type="file" id="exampleInputFile">
              </div>
              <div class="checkbox">
                <label>
                  <input type="checkbox"> Check me out
                </label>
              </div>
              <button type="submit" class="btn btn-default">Submit</button>
              <button type="submit" class="btn btn-danger">Submit</button>

              <button type="submit" class="btn btn-success">Submit</button>
              <button type="submit" class="btn btn-warning">Submit</button>
              <button type="submit" class="btn btn-info">Submit</button>
              <button type="submit" class="btn btn-link">Submit</button>
              <div class="checkbox disabled">
                <label>
                  <input type="checkbox" value="" disabled>
                  Option two is disabled
                </label>
              </div>
              <button class="btn btn-primary ttt btn-sm" disabled="disabled">按钮</button>
              <p class="text-danger">
                那就回家假按揭啊
              </p>

              <button type="button" class="close" aria-label="Close"><span aria-hidden="true">&times;</span></button>
              <span class="caret"></span>

              <div class="show">哈哈哈哈</div>
            </form>

          </div>
         
        </div>
      </div>
    </div>
  </body>
</html>